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-rw-r--r--scripts/markup_oops.pl59
1 files changed, 50 insertions, 9 deletions
diff --git a/scripts/markup_oops.pl b/scripts/markup_oops.pl
index 700a7a654a3..d40449cafa8 100644
--- a/scripts/markup_oops.pl
+++ b/scripts/markup_oops.pl
@@ -1,5 +1,7 @@
#!/usr/bin/perl -w
+use File::Basename;
+
# Copyright 2008, Intel Corporation
#
# This file is part of the Linux kernel
@@ -13,23 +15,41 @@
my $vmlinux_name = $ARGV[0];
-
+if (!defined($vmlinux_name)) {
+ my $kerver = `uname -r`;
+ chomp($kerver);
+ $vmlinux_name = "/lib/modules/$kerver/build/vmlinux";
+ print "No vmlinux specified, assuming $vmlinux_name\n";
+}
+my $filename = $vmlinux_name;
#
# Step 1: Parse the oops to find the EIP value
#
my $target = "0";
+my $function;
+my $module = "";
+my $func_offset;
+my $vmaoffset = 0;
+
while (<STDIN>) {
- if ($_ =~ /EIP: 0060:\[\<([a-z0-9]+)\>\]/) {
+ my $line = $_;
+ if ($line =~ /EIP: 0060:\[\<([a-z0-9]+)\>\]/) {
$target = $1;
}
-}
+ if ($line =~ /EIP is at ([a-zA-Z0-9\_]+)\+(0x[0-9a-f]+)\/0x[a-f0-9]/) {
+ $function = $1;
+ $func_offset = $2;
+ }
-if ($target =~ /^f8/) {
- print "This script does not work on modules ... \n";
- exit;
+ # check if it's a module
+ if ($line =~ /EIP is at ([a-zA-Z0-9\_]+)\+(0x[0-9a-f]+)\/0x[a-f0-9]+\W\[([a-zA-Z0-9\_\-]+)\]/) {
+ $module = $3;
+ }
}
+my $decodestart = hex($target) - hex($func_offset);
+my $decodestop = $decodestart + 8192;
if ($target eq "0") {
print "No oops found!\n";
print "Usage: \n";
@@ -37,6 +57,29 @@ if ($target eq "0") {
exit;
}
+# if it's a module, we need to find the .ko file and calculate a load offset
+if ($module ne "") {
+ my $dir = dirname($filename);
+ $dir = $dir . "/";
+ my $mod = $module . ".ko";
+ my $modulefile = `find $dir -name $mod | head -1`;
+ chomp($modulefile);
+ $filename = $modulefile;
+ if ($filename eq "") {
+ print "Module .ko file for $module not found. Aborting\n";
+ exit;
+ }
+ # ok so we found the module, now we need to calculate the vma offset
+ open(FILE, "objdump -dS $filename |") || die "Cannot start objdump";
+ while (<FILE>) {
+ if ($_ =~ /^([0-9a-f]+) \<$function\>\:/) {
+ my $fu = $1;
+ $vmaoffset = hex($target) - hex($fu) - hex($func_offset);
+ }
+ }
+ close(FILE);
+}
+
my $counter = 0;
my $state = 0;
my $center = 0;
@@ -59,9 +102,7 @@ sub InRange {
# first, parse the input into the lines array, but to keep size down,
# we only do this for 4Kb around the sweet spot
-my $filename;
-
-open(FILE, "objdump -dS $vmlinux_name |") || die "Cannot start objdump";
+open(FILE, "objdump -dS --adjust-vma=$vmaoffset --start-address=$decodestart --stop-address=$decodestop $filename |") || die "Cannot start objdump";
while (<FILE>) {
my $line = $_;